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{{PatentInfo |Inventor=Jacob Ullrich |Assignee=Jacob Ullrich |Country=US |ApplicationNum=585780 |ApplicationDate=1910-10-07 |PatentNum=979606 |PatentDate=1910-12-27 |PriorityDate=1910-10-07 |Titolo=Stylographic pen |Marca=Unbranded |Descrizione=[[Penna...